Column-top mold.



W. M. VENABLE.

' COLUMN TOP MOLD APPLICATION FILED NOV 1, 1912.

Patented Dec. 29, 1914,

, AVINVENTOR.

BY a ATTORNEY.

WITNESSES:

ca- E. sTAtrEs PATENT OFFICE.

WILLIAM MAYO VENABLE, or PITTSBURGH, PENNSYLVANIA, AssIeNoR T BLAW \SIEEL CONSTRUCTION COMPANY. or PITTSBURGH, PENNSYLVANIA, a CORPO- RATION or NEW JERSEY. v

- COLUMN-TOP MOLD.

Specification of Letters Patent. 1

Patented Dec. 29, 1914.

Application filed November 1,1912. Serial No. 229,078.

. To all 'w/wm 22 may concern "vided withan angle iron 9 for engaging the Bert known that I, WILLIAM MAYO VENM end of the mold 5, and the cylindrrcal col- ABLE, a citizen of the United States, residlar 2 is provided with an angle'iron l0for ing at Pittsburgh, in the county of Alleengaging the under surface of the floor 6. 5 gheny and State of Pennsylvania,-ha ve in- 1e 'm'anner'in which the upper conical vented certain new and useful Improve section 1 maybe utilized in connection with lIlGlltSdll Column-Top Molds, of which the a column form of a larger diameter isillusollowingis a specification.

e invention relates .tocolumn top lapping ends are secured detachably togcther,

bolts 8. The cylindrical collar 4' is pro- .tratedin Fig; 3, wherein the preferably by means of the stove-- 11 is of a larger diameter than the column as the walls of the upper section,.but having diiferent bottom diameters to fit the upper ends of circular column molds of column form molds or forms for use in the forrnation'of form 5 of Fig. 2. t wrl be seen that in concrete columns. The invention has for order to use the conical member 1 .with the its primary objects, the provision'of a colcolumn form 11- a lower conical member 3 umn top mold or form m wlnch the ma or having its lower end of greater diameter poi tron or the mold can be used with colthat the section .3 must be employed. The 15 unrns of different diameters, thusreducing -upper diameter of the section 3 is the same the number of different pieces of apparaas that of the section 3, and the amount of tus where a piece of construction work calls Overlapping between the sections 3 and 1 for columns of drfl erent'diameters and the is preferably the same as in Fig. 2, the secprovision ol .1 form of simple construction tion I 3 being substantially the section 3' 20 readily assembled and disassembled. One With its lower end cut off and with a collar embodiment of the invention is illustrated of larger diameter substituted forthe p in the accompanying d1 awing, whereincollar 4 of Fig. .2- It will be seen that by Fig. l is a plan view of the mold, Fig. 2 using a plurality of lower sections havin' is a vertical section through themold, and the same diameter at their-upper ends, but '25 ltig. 3 is a vertical section showing the a)- varying diameters at their bottom ends, the

plication of the form toa column of a dirferupper conical section 1 may be used with mt diameter than that shown in Fig. 2 column formswf widely varying diameter. Referring to F rgs 1 and 2, l is an upper he term conical is used 1n its broad or conical section provided at its upper end oose sense, and it'willbe understood that 30 with a cylindrical collar 2 riveted-or, othe1- the invention is not limited to theme of wise secured to the member 1 3 is the lower sections in which the par ts are geometricall conical member to the lower edge of which or exactly conlcal, the principle involved is riveted the cylindrical collar .4; 5 is the eing applicable 1n any case where the wall upper end of a column mold with which the 0 e sections converge from the upper to 35 column top mold consisting of the parts 1, the lower ends. 1' 2, 3', and 4c is to be used, and 6 is the aving thus described my invention and oorin through which the collar 2 extends illustrated its. use, what'lclalm as new and n order to remove the form after the condesire to secure by Letters Patent, 1s the cretehas set therein, the parts 1, 2, 3, and 4 following. r i 40 are made in two sections, the parts of which In combination, a column top molding overlap as indicated in the drawings', and apparatus for use with circular column are secureddetachably together by means molds of different diameters, compris ng an of the stove bolts 7. upper conical section and a plurality of he Walls of the sections 1 and 3 are inlower conical sections each with its walls 45 clined at the same angle, and their overconverging at substantially the same angle '5 sections may be detachably secured to the Witnesses:

different diameters, and all having a diamesigned my name in the presence oi the twoter at their-upper ends such that they will subscribed-Witnesses.

overlap the lower end of the upper sectlon. and means whereby any one of the lower MA E L upper sectlon. HARVEY L. LEGHNER, 'In testnnony whereof I have hereunto Ancnwonrn MARTIN. 

